Briquet and method of making the same.



can also be utilized for ADOLF ZINIDLEE, 0F BERLIN, GERMANY.

BBIQUET AND METHOD OF MAKING THE SAME.

1,000,439. No Drawing.

Specification of Letters Iatent. Patented Aug. 15, 1911 Applicationfiled October 29, 1908. Serial No. 460,139.

To all whom it may concern:

Be it known that I, Anonr ZINDLER, a subject of the German Emperor, andresidin at Berlin, Germany, have invented a certain new and usefulBriquet and Method of Making the Same, of which the following is aspecification. I

The important bject of the present method is to utilize the briquetingpowers of heated peat and to employ them for briqueting other substanceswhich alone cannot be made into briquets, and in accordance .with theinvention substances of the latter kind, such as anthraciteor-stone-coal, brown coal or lignite which cannot bebriqueted,-sn1allcoke, and the like such as coaldross and coal-slud e, are briquetedunder pressure in suitab e molds after being heated with peat which iscapable of briqueting. For example, 5% to of coke dust and the likewhich is frequently of little value and which can often be employed onlywith difficult can be mixed with peat and be briquete in the mannerstated, and when the percentage of bitumen in the peat is high, evenmore than the .above amounts of coke dust and the like (San be utilized.In this manner large quantitles of a fuel of inferior value areconverted into valuable heating material, for, owing to the addition ofstone coal, coke dust and the like which have a higher calorific valuethan peat, the peat briquets are improved. Also the manufacture ofbriquets is facilitated in consequence, be-

cause the high percentage of water in the.

peat is diminished by mixin it with a considerably drier material wh1chwhen dried in the air frequently containes 5% to 10% of water, on whichaccount there is less water to be evaporated inthe drying procv esswhich precedes the briqueting process. The heating of the peat isessential because, only in this manner is the bitumen made free and.capable of being used as an agglutinant. The briquetin power of peat%r1queting substances for smelting purposes.

For example, fine-grained ores, "alone or with fluxes, and likewise ironshavings, finegrained waste iron and the like, can .be mixed with peat,coke dust being also added, and briqueted, whereby materials which canbe smelted with difliculty otherwise are made suitable for smeltingpurposes. Also peat can be heated itself and-be then mixed and briquetedwith the substances which are to be brlqueted. The bitumen which isliberated on account of the heat then acts as an agglutinant.

The temperature at which the heating open tioi'i is carried out can varybetween F. and 600 F. It is to be understood however that this processis not to be limited to any particular temperature since any heatingwhich will be suflicient to liberate the bitumen is within the scope ofthis invention. I v

I am aware that peat has been solidified by steam-heating, grinding andsubsequent steam-heating and simultaneous pressure, but in such aprocess no bitumen is liberated from the peat nor are non-briquetingmaterials mixed with it. I am also aware that it has been proposed toform briquets of fine coal and peat by compression without theemployment of heat and consequently with: out the liberation of bitumenfrom the peat. Such briquets would crumble to dust immediately heat wasapplied to'them, if not before, and be quite unusable. Owing to thebitumen being liberated from the peat when mixed with non-briquetingmaterials and treated according to my improved method, durable briquetsare obtained capable of resisting considerable degrees of heat andenabling otherwise non-briqueting, waste materials to be-efiicientlyused. Q

What I claim as my invention and desire to secure by Letters-Patent is:

1. The herein described briquet composed of peat and a ,non-briquetingsubstance, such as'anthraoite coal or iron ore, united by the bituminousbinder-naturally present in the eat.

' 2. T e method of briqueting peat and non-briqueting materials, such esanthracite In testimony whereof I afiix my signature coal or ironi ore,l:vhich consists in inifizing in the presence of two witnesses. the peatan nonriqueting materia eating the peat to a. temperature suincient to rI ADOLF N 5 liberate the bituminous binding material Witnesses:

therein, and forming the mixture into bri- HENRY HAsPnn, quet's.

WOLDEMAR HAUPT.

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